Replacing the RCA wire on a Technics turntable is extremely easy to do. All that is required is a replacement wire. RCA wires are widely used in audio and video equipment. They are inexpensive and can be purchased at all major electronics stores like Best Buy, Circuit City and Frys. The length of RCA wires varies from 3 to 100 feet, and the length needed will depend on where the other end of the wire is being connected.
Remove the old RCA wire from the back of the Technics turntable. The RCA wire will likely be plugged into the back of the turntable's "Output" port. Pull the RCA cord out by removing each connector individually. RCA audio wires have two connectors, one red and one white, for left and right channel signals. Repeat this process on the other end of the wire with whatever it is connected to--for example, the amplifier or the mixer.
Measure the length of the old RCA wire and purchase a new replacement RCA wire of the exact same length. RCA wires are found at all major electronics stores, audio stores and many hardware stores. A 3-foot wire costs less than £3. The price increases as the length of wire does.
Plug the new replacement RCA wire into the back of the Technics turntable. Ensure that the wire is plugged into the same ports from which the old one was removed. Match the red jack of the RCA wire with the red port of the Technics turntable and do the same with the white wire and port. Connect the other end of the new RCA wire with the other piece of equipment. Again, ensure that the new RCA wire is plugged into the same ports as the old one was. Test the system to make sure the new wire works.